Thank you both. Kai, do you think I should open an issue on github?
Nikos On Tue, Nov 18, 2014 at 6:39 PM, Kai Noda <noda...@gmail.com> wrote: > Hi Nikos, > > std::sys is private and only for internal use in libstd as of now. It was > broken in the course of the Great Runtime Overhaul > https://github.com/rust-lang/rust/pull/18557 > > Stay tuned for updates from aturon... > > Regards, > Kai > > 野田 開 <noda...@gmail.com> > > 2014-11-19 7:13 GMT+08:00 Nikos Vasilakis <ni...@vasilak.is>: >> >> Hi everyone, >> >> (I apologize if this is not the right mailing list for this; if not, >> please point me to the right direction). >> >> At a high level, I am trying to get the file descriptor for a file I >> am opening -- the reason for this is I want to pass it on to ioctl >> later on. I am trying two approaches here: >> >> 1. Use libc FFI, and create and pass around a sys::fs::FileDesc. This >> worked until today, when I updated to latest rustc (using rustup). >> Now, trying to compile, gives me "unresolved import >> `sys::fs::FileDesc`. Maybe a missing `extern crate sys`?". (and extern >> does not work, can't find crate). >> >> Looking in the rust-lang source, however, I see it being used (and >> being imported) exactly as I do above (e.g., >> libstd/sys/unix/{helper_signal.rs, process.rs}). So, what's going on? >> >> 2. (Try to) Use regular, rust-y std::io::{File, Open, ReadWrite}, and >> try to use the `as_fd()` method on the `File` result I get from open. >> This is somewhat undocumented, but I came across the method in fs.rs >> source [1] (I think I intuitively understand what >> `sys_common::AsFileDesc` means in `impl sys_common::AsFileDesc for >> File`), and I then saw that process.rs actually uses it, of course >> after doing `use sys_common::{AsFileDesc}` at the beginning, as my >> intuition suggested. Still though, I get a similar error to (1) above, >> i.e., `unresolved import `sys_common::AsFileDesc`. Maybe a missing >> `extern crate sys_common`?` What's going on here? >> >> What doesn't any of these imports work? Also, where is the >> `sys_common` documented? And, most importantly, how do I get to play >> with file descriptors, without implementing the abstraction myself (in >> the case of (1), for instance)? >> >> Thanks! >> Nikos >> >> >> [1] >> http://doc.rust-lang.org/src/std/home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/libstd/io/fs.rs.html#91-95 >> _______________________________________________ >> Rust-dev mailing list >> Rust-dev@mozilla.org >> https://mail.mozilla.org/listinfo/rust-dev > > _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
